Sole attaching press



' G. STROBEL SOLE ATTAOHING PRESS Nov. 22, 1938.

Filed Jan. 10,' 1958 Patented. Nov. 22, 1938 2,137,788 some arra'onmorasss Gotthold Strobel, Frankfort-on-the-Main, Germany ApplicationJanuary 10, 1938, Serial No. 184,239 In Germany January 6, 1937 3Claims. (01. 12-33) This invention relates to a sole attaching press forshoes provided with a welt tensioning device. According to theinvention, sliding members displaceable in slots on the tensioningdevice posit sess smooth bores having internal thread the axis of whichis disposed at an angle to the bore to enable threaded spindlessupporting pressure segments to be movable within the sliding members inthe axial direction of the smooth bore as well as oi. the threads.

By way of example, the invention is illustrated in the accompanyingdrawing, in which Figure 1 is a top view of the sole attaching pressholding a shoe; Fig. 2, a front view thereof; Fig. 3, a litii detailview of a sliding member with spindle and detachable pressure segment;Fig. 4, a detail view of a sliding member withspindle in lockedposition; and Fig. 5, a view of a modification of the pressure unitcomprising, besides the spindle he and segment, a pressure equalizingspring.

Referring to the drawing, the tensioning frame or device 2| is guidedwith its parallel rectilinearly extending free ends 2: in holes of thepress member I supporting the last tensionin 2i; spindle 35 for the shoe33 on the elastic pad 34 disposed underneath. In its semicircularportion the frame 2| is held in position by the eye II of a supportingmember IS on the lower portion of the press body I. The frame 2| carriesslid- 30 ing members 22 provided with slots 23 for adjusting, i. e.removing and inclining, pressure segments 30. Each sliding member 22 hasa smooth bore 24 wherein a spindle 25 for a pressure segment can freelymove. The spindle 25 is threaded over its entire circumference.

Within the smooth bore 24 threads 29 are unflaterally cut in so thattheir axis forms an angle relative to the bore 24. By means of thesethreads 29 the threaded spindle 25 (Fig.- 4) with its sliding member 22can be locked like a screw joint while simultaneously the segment 30engages the shoe 33. The spindle 25 is rotatabiy connected with thesegment 30 and for this purpose provided at its conical end 32 with arecess 21 which holds an expanding spring 2!. While permitting theattachment and withdrawal of .the spring ll insures proper action of thesegment 30 relative to the shoe 33 due to the smooth l0 bore 24 of thesliding member 24, as shown in Fig. 4, without any lost motion on thepart of the spindle 25.

I claim:-

1. A sole attaching press, comprising a last 16 tensioning spindle, asemicircular welt tensioning frame disposed with its parallel andrectilinearly extending free ends in a hole of said spindle, threadedpressure spindles cooperating with free ly rotatable segments forengaging the work, 20 slotted sliding members having a smooth bore anddisposed on said tensioning frame for the reception of said pressurespindles and threads unilaterally cut into the smooth bore of thesliding members with their axis arranged at an angle 25 to the bore,said pressure spindles being longitudinally displaceable in the axialdirection of said smooth bore and also screwable and lockable in theaxial direction of the threads.

2. .A sole attaching press according to claim 1, 30 wherein the pressurespindles have a conical recessed end for holding an expanding springpermitting attachment and withdrawal of the pressure segments andpreventing them from accidentally dropping oil of the spindle ends. 35

3. A sole attaching press according to claim 1, wherein the pressurespindles have a conical recessed end for holding an expanding springpermitting attachment and. withdrawal of the pressure segments andpreventing them from acci- 4o dentally dropping off of the spindle ends,wherein a. pressure equalizing spring is interposed between eachpressure segment and the conical end of each pressure spindle.

GO'I'IHOLD BTROBEL.

